CVE-2026-57222
Suricata ippair: hash collision can cause incorrect state reuse across IPv4 and IPv6
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.17 and 8.0.6, crafted IPv4 and IPv6 address pairs can collide in the IPPair hash because src/ippair.c did not compare the IP address family before reusing IPPair-backed state. This can apply state from one IP family to another for xbits track ip_pair, FTP data expectations, and, on the 7.0 release line, thresholding, detection_filter, and rate_filter rules using track by_both, causing incorrect detection state. This issue is fixed in versions 8.0.6 and 7.0.17.
| CWE | CWE-697 |
| Vendor | oisf |
| Product | suricata |
| Published | Sep 18, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
Affected Versions
OISF / suricata
>= 8.0.0, < 8.0.6 < 7.0.17
References
github.com: https://github.com/OISF/suricata/security/advisories/GHSA-2r8x-23fw-hgcg github.com: https://github.com/OISF/suricata/commit/4a728464e6eb9e273bb02e3df0c28929b28db71d github.com: https://github.com/OISF/suricata/commit/9d788575c5d22a34eeed50d56557ed12b05e0aec github.com: https://github.com/OISF/suricata/commit/c92e270c4a795c52bce610aa1ce9ebaf065c49e6 github.com: https://github.com/OISF/suricata/releases/tag/suricata-7.0.17 github.com: https://github.com/OISF/suricata/releases/tag/suricata-8.0.6 redmine.openinfosecfoundation.org: https://redmine.openinfosecfoundation.org/issues/8559